System description
6
Operating Instructions Radiation sensors R3XX
For R 310, R 311, R 312, R 320
PT100 for ambient temperature (TR 41-10)
HART
®
protocol (FSK BELL 202, 1,2 kb/s)
Functions (configurable via HART
®
interface, with TR 41-10 also via keyboard)
Ambient temperature alarm
20...70 or 125 °C (68...158 or 257 °F), sensor-dependent
0...15 (0 = point to point, 1…15 = multidrop)
0...15 (0 = point to point, 1…15 multidrop)
500 for standard version/U
H
= 24 V
1 % of measuring range (at 23 °C and for ε = 1)
R 312: 1% above 50 °C object temperature, less than 50 °C 3%